Deuter Zugspitze 22 SL Day Hiking Backpack BY WOMEN, FOR WOMEN - Women's backs are generally shorter than men's; Deuter's SL carry system is designed not only to accommodate this, but also account for other anatomical differences; SL packs bring together the latest physiological science and advanced ergonomics to deliver optimal comfort and performance through anatomically-sound construction MAXIMUM VENTILATION - Deuter's innovative AirComfort back system leverages a flexible steel spring frame to stabilize the mesh panel that creates ventilation space between the pack and your body; Ultralight, super-breathable, the durable AirComfort system reduces heat build up without compromising freedom of movement ADVANCED COMFORT - The ergonomic design of this classic hiking backpack makes it extraordinarily comfortable; Waist belt and padded hip fins are molded to the shape of the pelvis; Adjustable S-shaped Soft Edge shoulder straps fit like a glove and won't chafe as you move FEATURES AND FUNCTIONALITY - Volume-regulating compression straps; stretch side pockets for water bottles; specialized compartments for valuables and wet gear or clothing; hiking pole attachment loops; pockets in all the right places; even an integrated, detachable rain cover BUILT TO LAST - Ripstop-Polytex lends the Zugspitze day pack high-performance durability without extra weight; Strong ripstop threads and PU coating makes these backpacks water- and abrasion- resistant, allowing them to work harder and last longer